Exo 13:10, Num 18:15 | ESV | STEP | You shall therefore keep this statute at its appointed time from year to year .

Exodus 13:10

10 ^aYou shall therefore keep this statute at its appointed time from year to year.

Numbers 18:15

15 ^bEverything that opens the womb of all flesh, whether man or beast, which they offer to the Lord, shall be yours. Nevertheless, ^cthe firstborn of man you shall redeem, and the firstborn of unclean animals you shall redeem.